... .zinc plated,black,etc 4.flat,pan, etc. cnc machining part 1.Surface Finish: annealing, natural anodization, heat treatment, polishing, ... lot of years technical experiences, we are engaged in the hardware for many years,we have been in constant pursuit continous ... to smile to each customer1)Details: Product name cnc machining part Material1.Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS4202. ...